schizophrenic GCC versions in -current?

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

There seems to be some difference of opinion of exactly which version
of GCC is in -current (as of 7.99.21) on my macppc and sparc systems.
(I haven't examined i386, amd64, or evbmips-64el yet.)

Building boost-libs on macppc seems to indicate v4.8.5 as evidenced by
the various lines of the form:

  gcc.compile.c++ bin.v2/libs/graph/build/gcc-4.8.5/release/threading-multi/read_graphviz_new.o

and so forth.

But then I see this:

  $ gcc --version
  gcc (nb2 20150115) 4.8.4

and this:

  $ strings /usr/bin/gcc | grep "4\.8\."
  4.8.5
  4.8.4

I'm assuming that "4.8.5" is the internal symbol version, but "4.8.4" is
the string output in response to the "--version" option.

Just in case there was a snafu due to my preference for update builds,
I'm rebuilding in non-update mode to see if the two strings can be made
to agree.

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